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Need help with Part E. Calculate the pH after the following volumes of acid (31.0 mL)...

Question:

M Review Constants Periodic Table You may want to reference (Pages 729 - 739) Section 17.3 while completing this problem. pHNeed help with Part E.

Calculate the pH after the following volumes of acid (31.0 mL) have been added.

Will rate high is answer is correct. Thank you!

M Review Constants Periodic Table You may want to reference (Pages 729 - 739) Section 17.3 while completing this problem. pH = 2.17 A 20.0-mL sample of 0.150 M KOH is titrated with 0.125 M HCIO4 solution. Calculate the pH after the following volumes of acid have been added. Submit Previous Answers Correct After the equivalence point, additional acid drives the solution toward an acidic pH because the H+ ion is in excess. Part E 31.0 mL of the acid Express your answer using two decimal places. ALQ R o B ? V pH = 1.75 Submit Previous Answers Request Answer X Incorrect; Try Again; 4 attempts remaining

Answers

mole of Kor= mole of H10 4 = 0.150 x 90 = 3 mmole 0.125 x 31= 3.875 mmole left mole of Heloa = 3:875-3 nmole = 0.875 mmole (H

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